The word “Niagara” is derived from the Iroquois Indian word “Onguiaahra” meaning “the strait” There is an international boundary between the United States and Canada. Before the invention of film, tourists would sketch pictures of the Falls. The flow was also halted over both falls on March 30th 1848 due to an ice jam in the upper river. The movies Niagara and Superman were filmed in part at the Falls.